greatly too very A. the number of births 【T1】______exceeds B. has a 【T2】______marked effect on the available workforce C. o

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问题 greatly   too    very
A. the number of births 【T1】______exceeds
B. has a 【T2】______marked effect on the available workforce
C. of those 【T3】______old to work
Although the size of the workforce depends a great deal on the size of the total population , there are several other influences which also affect it. The age distribution of the total population 【T4】______. If the population has a high proportion of very young people or 【T5】______, then the available workforce would be lower than if there were an evenly spread age distribution. If the population grows rapidly from natural increase, i.e. 【T6】______ the number of deaths, then as the total population increases, the proportion in the workforce declines.
【T1】

选项

答案greatly

解析     1~3题主要是考查常用副词的准确使用。最容易填的是第3题,正确答案是too,too…to(太……以至于不能)是固定的搭配。第1题正确答案是greatly,greatly经常用于exceed(超出),increase(增多),decrease(减少)这样的词汇前面,来形容幅度大。第2题,正确答案是very。
    三个语言段填好后完整的语义和语法功能如下:A的语法成分是:主谓结构,句子缺少及物动词exceed的宾语,意思是:出生率极大地超过了。B的语法成分是:谓语+宾语,意思是:对现有的劳动力有着非常显著的影响。C的语法成分是:介词词组,意思是:那些太老的,不能工作的。
    这篇文章主要是讲影响劳动力规模的因素。第4题所在句子缺的是谓语,所以正确答案是B。完成后句子的完整语义是:总体人口的年龄分布对现有的劳动力有着非常显著的影响。第5题用在并列连词or后面,是or连接的并列成分,正确答案是C,of those too old to work与前面的of very young people形成了语义上的对比。完成后句子的完整语义是:如果人口中特别年轻的人或太老不能工作的人太多的话,可用的劳动力就会比人口年龄平均分布时要低。第6题正确答案是A,用在i.e.(也就是说)后面,是对前面the population grows:rapidly from natural increase的解释。完成后句子的完整语义是:如果人口增长的速度远高于自然增长,也就是说出生率大大地超过了死亡率,那么随着人口总数的增长,劳动力的比例则呈下降趋势。
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